Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1.
|
A life scientist is LEAST likely to be found working
a. | in a laboratory. | c. | in an art museum. | b. | in a hospital. | d. | at the bottom of the
ocean. |
|
|
|
2.
|
Which of the following is NOT one of the ways in which the work of a life
scientist is beneficial?
a. | helping to fight diseases | b. | finding out about weather
patterns | c. | studying environmental problems on Earth | d. | studying how humans
inherit the code that controls their cells |
|
|
|
3.
|
A hypothesis is
a. | a fact. | c. | a possible answer to a question. | b. | a type of
question. | d. | an
experiment. |
|
|
|
4.
|
A unifying explanation for a broad range of observations, facts, and tested
hypotheses is called a
a. | theory. | c. | hypothesis. | b. | law. | d. | conclusion. |
|
|
|
5.
|
In which of the following areas of study might you find a life scientist at
work?
a. | discovering ways to improve computer programs | b. | studying the impact
of non-native plants on marshes | c. | trying to develop a warning system for
tornadoes | d. | researching the composition of asteroids in space |
|
|
|
6.
|
Which units are part of the International System of Units?
a. | inches | c. | pounds | b. | milliliter | d. | degrees
Fahrenheit |
|
|
|
7.
|
Which of the following differs between groups in a controlled experiment?
a. | a test | c. | a variable | b. | a prediction | d. | a hypothesis |
|
|
|
8.
|
Which describes a compound light microscope?
a. | It passes electrons through something to make a 3-D image. | b. | It passes electrons
through something to make a flat image. | c. | It sends electromagnetic waves through the body
to make images. | d. | It is made up of three main parts: a tube with lenses, a stage, and a
light. |
|
|
|
9.
|
Which of the following is NOT a characteristic that all organisms share?
a. | ability to taste and smell | c. | ability to grow and
develop | b. | ability to use energy | d. | ability to sense and respond to change |
|
|
|
10.
|
What do gravity, sounds, and light have in common?
a. | They are necessary for survival. | b. | They are characteristics of
life. | c. | They are experiences all organisms share. | d. | They are examples of
stimuli. |
|
|
|
11.
|
Approximately how much of the human body is water?
|
|
|
12.
|
The molecule that provides energy for cellular processes is
a. | ATP. | c. | DNA. | b. | RNA. | d. | protein. |
|
|
|
13.
|
How do people warm up their bodies when they are cold?
a. | sweat | c. | move to a shady area | b. | shiver | d. | stay still |
|
|
|
14.
|
One benefit of being a large organism is that you have
a. | larger cells. | c. | simpler functions. | b. | fewer predators. | d. | only one kind of
cell. |
|
|
|
15.
|
A group of cells with the same function makes up
a. | an organism. | c. | a tissue. | b. | an organ system. | d. | a structure. |
|
|
|
16.
|
Which of the following statements is not part of the cell theory?
a. | Animals and plants share the same kinds of cells. | b. | All organisms are
made up of one or more cells. | c. | The cell is the basic unit of all living
things. | d. | All cells come from existing cells. |
|
|
|
17.
|
What part of the cell acts as the cell’s delivery system?
a. | nucleus | c. | mitochondrion | b. | nucleolus | d. | endoplasmic
reticulum |
|
|
|
18.
|
What cell parts carry materials between organelles such as the ER and the Golgi
complex?
a. | ribosomes | c. | vesicles | b. | lysosomes | d. | vacuoles |
|
|
|
19.
|
Larger size, longer life, and specialization are three advantages to being
a
a. | eukaryote. | c. | unicellular organism. | b. | prokaryote. | d. | multicellular organism. |
|
|
|
20.
|
A cell’s volume grows faster than its surface area, so if a cell gets too
large
a. | its surface area–to-volume ratio will decrease. | b. | the cell membrane
and cell walls will break down. | c. | its outer surface will harden like an eggshell
does. | d. | it will not be able to take in enough nutrients or get rid of
wastes. |
|
|
|
21.
|
Where do all cells come from?
a. | animals | c. | cells | b. | ponds | d. | eggs |
|
|
|
22.
|
Diffusion allows materials to
a. | move in and out of cells. | c. | get rid of large
particles. | b. | grow larger. | d. | produce energy. |
|
|
|
23.
|
Osmosis is important to cells because
a. | cells contain fluids that are mostly water. | b. | cells are filled
with fluids that are mostly sugar. | c. | cells need to be kept cool. | d. | cells need
food. |
|
|
|
24.
|
The process by which plants, algae, and some bacteria use carbon dioxide,
sunlight, and water to make glucose and oxygen is called
a. | osmosis. | c. | photosynthesis. | b. | fermentation. | d. | cellular
respiration. |
|
|
|
25.
|
Food particles move through a cell membrane without using energy in a process
called
a. | osmosis. | c. | active transport. | b. | passive transport. | d. | endocytosis. |
|
|
|
26.
|
When wilted celery is soaked in water, it becomes crisp again due to
a. | exocytosis. | c. | vesicle movement. | b. | active transport. | d. | osmosis. |
|
|
|
27.
|
What do all organisms need to get rid of in order to live?
a. | wastes | c. | energy | b. | heat | d. | fat |
|
|
|
28.
|
What helps wilted plants become firm through osmosis?
a. | sunlight | c. | energy | b. | water | d. | heat |
|
|
|
29.
|
When a human feels hungry it is because his or her cells need
a. | sunlight. | c. | water. | b. | rest. | d. | energy. |
|
|
|
30.
|
What gas is released during cellular respiration?
a. | carbon dioxide | c. | sunlight | b. | nitrogen | d. | oxygen |
|
|
|
31.
|
Binary fission, the process by which bacteria cells divide, means
a. | two into three. | c. | dividing several times. | b. | splitting into two
parts. | d. | two coming
together. |
|
|
|
32.
|
Each parent gives one set of these to the offspring.
a. | genes | c. | phenotypes | b. | alleles | d. | meiosis |
|
|
|
33.
|
Which one of the following statements is NOT true?
a. | One gene can influence many traits. | b. | Several genes can influence a single
trait. | c. | The environment can have an influence on traits. | d. | Genes are the only
influence on traits. |
|
|
|
34.
|
What carries the genes that determine sex?
a. | homologous chromosomes | c. | sex chromosomes | b. | pedigree | d. | phenotype |
|
|
|
35.
|
Which one of the following is the name for the way cells divide in asexual
reproduction?
a. | twins | c. | meiosis | b. | mitosis | d. | homologous |
|
|
|
36.
|
Offspring that are different from both parents are produced by
a. | asexual reproduction. | c. | sexual reproduction. | b. | something going wrong. | d. | mitosis. |
|
|
|
37.
|
What is heredity?
a. | traits passing from offspring to parents | c. | plants that are
cross-pollinated | b. | traits passing from parents to offspring | d. | the ratio of dominant to recessive
traits |
|
|
|
38.
|
To be copied, a DNA molecule splits
a. | across the top. | c. | along the sides. | b. | down the middle. | d. | along the
phosphates. |
|
|
|
39.
|
In what type of mutation is one base left out?
a. | substitution | c. | insertion | b. | deletion | d. | cell |
|
|
|
40.
|
A tobacco plant with a firefly gene that makes it glow is an example of
a. | DNA fingerprinting. | c. | protein science. | b. | genetic engineering. | d. | firefly
breeding. |
|
|
|
41.
|
What scientist made images of DNA by using X-ray diffraction?
a. | Rosalind Franklin | c. | Erwin Chargaff | b. | James Watson | d. | Francis Crick |
|
|
|
42.
|
What did Watson and Crick’s model of DNA look like?
a. | a ball | c. | links in a chain | b. | a straight line | d. | a long, twisted
ladder |
|
|
|
43.
|
Which of these is a subunit of DNA?
a. | RNA | c. | ribosome | b. | trait | d. | nucleotide |
|
|
|
44.
|
What did Darwin NOT understand about the process of evolution?
a. | the slowness of the process | c. | the role of
genetics | b. | the importance of separation | d. | the importance of
competition |
|
|
|
45.
|
Which of the following is NOT an example of natural selection?
a. | people breeding horses to run faster | b. | bacteria populations becoming resistant to
antibiotics | c. | insect populations developing resistance to certain pesticides | d. | male birds of
certain species developing colorful feathers to attract female mates |
|
|
|
46.
|
The process consisting of separation, adaptation, and division is
a. | mating. | c. | resistance. | b. | isolation. | d. | speciation. |
|
|
|
47.
|
The process by which populations slowly change over time is called
a. | selective breeding. | c. | speciation. | b. | adaptation. | d. | evolution. |
|
|
|
48.
|
A characteristic that improves an organism’s ability to survive is
a(n)
a. | adaptation. | c. | reproduction. | b. | inherited variation. | d. | breeding. |
|
|
|
49.
|
Trace remains of organisms that lived long ago are called what?
a. | adaptations | c. | genetics | b. | fossils | d. | offspring |
|
|
|
50.
|
Which of the following do scientists think was an ancestor of whales?
a. | a large tree | c. | a shark | b. | an ancient fish | d. | an ancient land
mammal |
|